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+<title>Sly: Easings</title>
+
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+<a name="Easings"></a>
+<div class="header">
+<p>
+Next: <a href="Tweening.html#Tweening" accesskey="n" rel="next">Tweening</a>, Up: <a href="Tweens.html#Tweens" accesskey="u" rel="up">Tweens</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<a name="Easings-1"></a>
+<h4 class="subsubsection">4.2.4.1 Easings</h4>
+
+<p>Easing procedures specify the rate of change of a value <var>alpha</var>
+over time.  Easings may be composed to form complex animation.
+</p>
+<p>The following procedures are used to control repitition by clamping
+<var>alpha</var> to the range [0, 1] in different ways.
+</p>
+<dl>
+<dt><a name="index-ease_002dloop"></a>Scnheme Procedure: <strong>ease-loop</strong> <em><var>alpha</var></em></dt>
+<dd><p>When <var>alpha</var> reaches 1, start over from 0.
+</p></dd></dl>
+
+<dl>
+<dt><a name="index-ease_002dreflect"></a>Scheme Procedure: <strong>ease-reflect</strong> <em><var>alpha</var></em></dt>
+<dd><p>When <var>alpha</var> reaches 1, work backwards to 0.  When <var>alpha</var>
+reaches 0, work forwards to 1.
+</p></dd></dl>
+
+<p>The following easing functions control the rate of change of an
+animation:
+</p>
+<dl>
+<dt><a name="index-ease_002dlinear"></a>Scheme Procedure: <strong>ease-linear</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002din_002dsine"></a>Scheme Procedure: <strong>ease-in-sine</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002dout_002dsine"></a>Scheme Procedure: <strong>ease-out-sine</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002din_002dout_002dsine"></a>Scheme Procedure: <strong>ease-in-out-sine</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002din_002dquad"></a>Scheme Procedure: <strong>ease-in-quad</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002dout_002dquad"></a>Scheme Procedure: <strong>ease-out-quad</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+<dl>
+<dt><a name="index-ease_002din_002dout_002dquad"></a>Scheme Procedure: <strong>ease-in-out-quad</strong> <em><var>alpha</var></em></dt>
+</dl>
+
+
+
+
+</body>
+</html>